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Thread Size
Length
Neck Type
Threading
Fastener Strength Grade Class
Neck Width
Head Diameter
Neck Length
Head Height
Thread Spacing
Thread Fit
Hardness
Tensile Strength
High-Strength Grade 8 SteelSquare-Neck Carriage Bolts
23 Products
High-Strength Grade 8 SteelSquare-Neck Carriage Bolts
Made from Grade 8 steel, these bolts can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. Carriage bolts have a smooth, rounded head for a finished look. The square neck keeps these bolts from turning when tightening a nut.
Part Number
Thread
Size
Size
Length
Threading
Thread
Spacing
Spacing
Head
Diameter
Diameter
Head
Height
Height
Neck Width
Neck
Length
Length
Tensile
Strength
Strength
Hardness
Specifications
Met
Met
Price
JHAAAAFBA
1/4"-20
3/4"
Fully Threaded
Coarse
0.594"
0.145"
0.26"
0.16"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 6.38
JHAAAAFBB
1/4"-20
1"
Fully Threaded
Coarse
0.594"
0.145"
0.26"
0.16"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 7.00
JHAAAAFBC
1/4"-20
1 1/4"
Fully Threaded
Coarse
0.594"
0.145"
0.26"
0.16"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 7.78
JHAAAAFBD
1/4"-20
1 1/2"
Fully Threaded
Coarse
0.594"
0.145"
0.26"
0.16"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 8.44
JHAAAAFBE
1/4"-20
2"
Fully Threaded
Coarse
0.594"
0.145"
0.26"
0.16"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 9.82
JHAAAAFBF
5/16"-18
3/4"
Fully Threaded
Coarse
0.719"
0.176"
0.32"
0.19"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 10.82
JHAAAAFBG
5/16"-18
1"
Fully Threaded
Coarse
0.719"
0.176"
0.32"
0.19"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 11.80
JHAAAAFBH
5/16"-18
1 1/4"
Fully Threaded
Coarse
0.719"
0.176"
0.32"
0.19"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 12.90
JHAAAAFBI
5/16"-18
1 1/2"
Fully Threaded
Coarse
0.719"
0.176"
0.32"
0.19"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 13.94
JHAAAAFBJ
5/16"-18
2"
Fully Threaded
Coarse
0.719"
0.176"
0.32"
0.19"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 8.34
JHAAAAFCA
5/16"-18
3"
Fully Threaded
Coarse
0.719"
0.176"
0.32"
0.19"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 10.90
JHAAAAFCB
3/8"-16
1"
Fully Threaded
Coarse
0.844"
0.208"
0.39"
0.22"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 17.80
JHAAAAFCC
3/8"-16
1 1/4"
Fully Threaded
Coarse
0.844"
0.208"
0.39"
0.22"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 19.34
JHAAAAFCD
3/8"-16
1 1/2"
Fully Threaded
Coarse
0.844"
0.208"
0.39"
0.22"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 10.66
JHAAAAFCE
3/8"-16
2"
Fully Threaded
Coarse
0.844"
0.208"
0.39"
0.22"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 12.08
JHAAAAFCF
3/8"-16
2 1/2"
Fully Threaded
Coarse
0.844"
0.208"
0.39"
0.22"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 13.74
JHAAAAFCG
3/8"-16
3"
Fully Threaded
Coarse
0.844"
0.208"
0.39"
0.22"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 15.52
JHAAAAFCH
1/2"-13
1 1/2"
Fully Threaded
Coarse
1.094"
0.27"
0.52"
0.28"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 8.44
JHAAAAFCI
1/2"-13
2"
Fully Threaded
Coarse
1.094"
0.27"
0.52"
0.28"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 9.72
JHAAAAFCJ
1/2"-13
2 1/2"
Fully Threaded
Coarse
1.094"
0.27"
0.52"
0.28"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 11.28
JHAAAAFDA
1/2"-13
3"
Fully Threaded
Coarse
1.094"
0.27"
0.52"
0.28"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 12.50
JHAAAAFDB
1/2"-13
3 1/2"
Fully Threaded
Coarse
1.094"
0.27"
0.52"
0.28"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 13.66
JHAAAAFDC
1/2"-13
4"
Fully Threaded
Coarse
1.094"
0.27"
0.52"
0.28"
150,000 psi
Rockwell C33
ASME B18.5, SAE J429
$ 14.94